Jannik Sinner returns to action at the Italian Open after the conclusion of the World No 1’s three-month doping ban. Sinner has not played since winning the Australian Open in January for his third grand slam title after the Italian reached a resolution agreement with the World Anti-Doping Agency (WADA).

Jannik Sinner returns to action at the Italian Open after serving a mandatory three-month suspension for a doping violation. The timing couldn’t be better for the world No. 1, as he makes his comeback in front of a home crowd in Rome. Ahead of his opening match, the Italian star made headlines with unexpected praise for a potential opponent.

The men's world No. 1 missed several tournaments, but no Grand Slams. Here's what to know about the doping proceedings against him.